diff --git a/include/boost/algorithm/string/case_conv.hpp b/include/boost/algorithm/string/case_conv.hpp
index 70eb78c..5f61bf1 100644
--- a/include/boost/algorithm/string/case_conv.hpp
+++ b/include/boost/algorithm/string/case_conv.hpp
@@ -59,7 +59,7 @@ namespace boost {
                 begin(Input), 
                 end(Input), 
                 Output,
-                detail::to_lowerF<
+                ::boost::algorithm::detail::to_lowerF<
                     typename range_value<RangeT>::type >(Loc));
         }
 
@@ -75,11 +75,11 @@ namespace boost {
             return SequenceT(
                 make_transform_iterator(
                     begin(Input),
-                    detail::to_lowerF<
+                    ::boost::algorithm::detail::to_lowerF<
                         typename range_value<SequenceT>::type >(Loc)),
                 make_transform_iterator(
                     end(Input), 
-                    detail::to_lowerF<
+                    ::boost::algorithm::detail::to_lowerF<
                         typename range_value<SequenceT>::type >(Loc)));
         }
 
@@ -100,7 +100,7 @@ namespace boost {
                 begin(Input), 
                 end(Input), 
                 begin(Input), 
-                detail::to_lowerF<
+                ::boost::algorithm::detail::to_lowerF<
                     typename range_value<WritableRangeT>::type >(Loc));
         }
         
@@ -132,7 +132,7 @@ namespace boost {
                 begin(Input), 
                 end(Input), 
                 Output,
-                detail::to_upperF<
+                ::boost::algorithm::detail::to_upperF<
                     typename range_value<RangeT>::type >(Loc));
         }
 
@@ -148,11 +148,11 @@ namespace boost {
             return SequenceT(
                 make_transform_iterator(
                     begin(Input),
-                    detail::to_upperF<
+                    ::boost::algorithm::detail::to_upperF<
                         typename range_value<SequenceT>::type >(Loc)),
                 make_transform_iterator(
                     end(Input), 
-                    detail::to_upperF<
+                    ::boost::algorithm::detail::to_upperF<
                         typename range_value<SequenceT>::type >(Loc)));
 
         }
@@ -174,7 +174,7 @@ namespace boost {
                 begin(Input), 
                 end(Input), 
                 begin(Input), 
-                detail::to_upperF<
+                ::boost::algorithm::detail::to_upperF<
                     typename range_value<WritableRangeT>::type >(Loc));
         }
 
diff --git a/include/boost/algorithm/string/trim.hpp b/include/boost/algorithm/string/trim.hpp
index ed711cd..6a3425b 100644
--- a/include/boost/algorithm/string/trim.hpp
+++ b/include/boost/algorithm/string/trim.hpp
@@ -61,7 +61,7 @@ namespace boost {
             PredicateT IsSpace)
         {
             std::copy( 
-                detail::trim_begin( 
+                ::boost::algorithm::detail::trim_begin( 
                     begin(Input), 
                     end(Input), 
                     IsSpace ),
@@ -79,7 +79,7 @@ namespace boost {
         inline SequenceT trim_left_copy_if(const SequenceT& Input, PredicateT IsSpace)
         {
             return SequenceT( 
-                detail::trim_begin( 
+                ::boost::algorithm::detail::trim_begin( 
                     begin(Input), 
                     end(Input), 
                     IsSpace ),
@@ -120,7 +120,7 @@ namespace boost {
         {
             Input.erase( 
                 begin(Input),
-                detail::trim_begin( 
+                ::boost::algorithm::detail::trim_begin( 
                     begin(Input), 
                     end(Input), 
                     IsSpace));
@@ -168,7 +168,7 @@ namespace boost {
         {
             std::copy( 
                 begin(Input),
-                detail::trim_end( 
+                ::boost::algorithm::detail::trim_end( 
                     begin(Input), 
                     end(Input), 
                     IsSpace ),
@@ -186,7 +186,7 @@ namespace boost {
         {
             return SequenceT( 
                 begin(Input),
-                detail::trim_end( 
+                ::boost::algorithm::detail::trim_end( 
                     begin(Input), 
                     end(Input), 
                     IsSpace)
@@ -227,7 +227,7 @@ namespace boost {
         inline void trim_right_if(SequenceT& Input, PredicateT IsSpace)
         {
             Input.erase(
-                detail::trim_end( 
+                ::boost::algorithm::detail::trim_end( 
                     begin(Input), 
                     end(Input), 
                     IsSpace ),
@@ -278,7 +278,7 @@ namespace boost {
         {
             BOOST_STRING_TYPENAME 
                 range_const_iterator<RangeT>::type TrimEnd=
-                detail::trim_end( 
+                ::boost::algorithm::detail::trim_end( 
                     begin(Input), 
                     end(Input), 
                     IsSpace);
@@ -302,7 +302,7 @@ namespace boost {
         {
             BOOST_STRING_TYPENAME 
                 range_const_iterator<SequenceT>::type TrimEnd=
-                    detail::trim_end( 
+                    ::boost::algorithm::detail::trim_end( 
                         begin(Input), 
                         end(Input), 
                         IsSpace);